Tuesday, April 23, 2013 11:05 AMMore fun with the CloudStack APIThe blog of Kirk Jantzer
So, as I stated in a previous post, I've been playing with the CloudStack API in an effort to make deployment a mass amount of servers with as little effort as possible. In my first attempt, I had predetermined some of the settings for deploying an instance, since this was really only a test/POC. With my latest iteration, I was able to use the API to query those settings and create automatically populated drop-down lists :-D
Again, I am in no way a master a of PHP, much less dealing with an API; but that doesn't mean I'm afraid to try new things :-) I welcome any suggestions on improving this page and it is open for you to copy/modify/use/improve. Also of mention, this is certainly a work in progress. I currently have a very small setup: only one master server, with only one basic zone, and a minimal amount of disk and service offerings. I fully intend to grow this page as our environment grows, but I needed to be able to hit the ground running.
On to the nerdy bits... Here is the code I have so far. It's quite ugly and could really use some optimization, but it works for what I need:
And here is what it looks like:
See? Simple, yet effective! Ping me if you have questions/comments/critiques.
Again, I am in no way a master a of PHP, much less dealing with an API; but that doesn't mean I'm afraid to try new things :-) I welcome any suggestions on improving this page and it is open for you to copy/modify/use/improve. Also of mention, this is certainly a work in progress. I currently have a very small setup: only one master server, with only one basic zone, and a minimal amount of disk and service offerings. I fully intend to grow this page as our environment grows, but I needed to be able to hit the ground running.
On to the nerdy bits... Here is the code I have so far. It's quite ugly and could really use some optimization, but it works for what I need:
<html>
<head>
<title>CloudStack API</title>
</head>
<?php
$apikey = "apikey=******************************************************";
$secretkey = "******************************************************";
if(isset($_POST['submit']))
{
$prefix = $_POST['prefix'];
$endnum = ($_POST['startnum'] + $_POST['quantity']) - 1;
$startnum = $_POST['startnum'];
$zoneId = "zoneId=" . $_POST['zoneid'];
$serviceOfferingId = "serviceOfferingId=" . $_POST['serviceOfferingId'];
$diskOfferingId = "diskOfferingId=" . $_POST['diskOfferingId'];
$templateId = "templateId=" . $_POST['isoid'];
if (empty($prefix) || empty($startnum) || empty($_POST['quantity']))
{
echo "<b>You missed a field!</b><br />";
}
else
{
echo "You have submitted for the following servers to be built: <br />";
for ($i=$startnum; $i<=$endnum; $i++)
{
echo $prefix . $i . "<br />";
$hypervisor = "hypervisor=XenServer";
$response = "response=json";
$urlcommand = "command=deployVirtualMachine&" . $zoneId . "&" . $diskOfferingId . "&displayname=" . $prefix . $i . "&" . $hypervisor . "&name=" . $prefix . $i . "&" . $serviceOfferingId . "&" . $templateId . "&" . $apikey;
$hashcommand = "apikey=" . $apikey . "&command=deployVirtualMachine&zoneId=" . $zoneId . "&" . $diskOfferingId . "&displayname=" . $prefix . $i . "&" . $hypervisor . "&name=" . $prefix . $i . "&" . $serviceOfferingId . "&" . $templateId;
$hash = hash_hmac("sha1", strtolower($hashcommand), $secretkey.true, TRUE);
$base64encoded = base64_encode($hash);
$signature = "signature=" . urlencode($base64encoded);
$url = "http://FQDN:8096/client/api?" . $urlcommand . "&" . $signature . "&" . $response;
//echo $url . "<br/><br/>";
$responseconents = file_get_contents($url);
$responsejson = json_decode($responsecontents);
}
}
echo "<br />";
}
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<div id="wrapper" style="width: 900px;margin: auto;border: 1px solid black">
<div id="header">
<h1>Welcome</h1>
<p>This is the CloudStack API frontend. Please use the fields below to build your VMs in mass :-)</p>
</div>
<!--<div id="content">
<div id="col1" style="float:left;width:448px;text-align:right">API Key: </div>
<div id="col2" style="float:left;width:448px;"><input type="text" name="apikey" placeholder="From CloudStack UI"><br /></div>
</div>
<div id="content">
<div id="col1" style="float:left;width:448px;text-align:right">API Secret Key: </div>
<div id="col2" style="float:left;width:448px;"><input type="text" name="secretkey" placeholder="From CloudStack UI"><br /></div>
</div>
-->
<div id="content">
<div id="col1" style="float:left;width:448px;text-align:right">Zone: </div>
<div id="col2" style="float:left;width:448px;">
<?php
$hash = hash_hmac("sha1", strtolower("listZones"), $secretkey.true, TRUE);
$base64encoded = base64_encode($hash);
$signature = "signature=" . urlencode($base64encoded);
$response = "response=json";
$url = "http://FQDN:8096/client/api?command=listZones&" . $apikey . $signature . "&" . $response;
$html = file_get_contents($url);
$json = preg_replace('/,\s*([\]}])/m', '$1', utf8_encode($html));
$json = json_decode($json);
echo "<select name=\"zoneid\">";
foreach ($json->listzonesresponse->zone as $zone) {
echo "<option value=\"" . $zone->id . "\">" . $zone->name . "<br /></option>";
}
echo "</select>";
?>
<br /></div>
</div>
<div id="content">
<div id="col1" style="float:left;width:448px;text-align:right">Service Offering: </div>
<div id="col2" style="float:left;width:448px;">
<?php
$hash = hash_hmac("sha1", strtolower("listServiceOfferings"), $secretkey.true, TRUE);
$base64encoded = base64_encode($hash);
$signature = "signature=" . urlencode($base64encoded);
$response = "response=json";
$url = "http://FQDN:8096/client/api?command=listServiceOfferings&" . $apikey . $signature . "&" . $response;
$html = file_get_contents($url);
$json = preg_replace('/,\s*([\]}])/m', '$1', utf8_encode($html));
$json = json_decode($json);
echo "<select name=\"serviceOfferingId[]\">";
foreach ($json->listserviceofferingsresponse->serviceoffering as $serviceoffering) {
echo "<option value=\"" . $serviceoffering->id . "\">" . $serviceoffering->name . " (" . $serviceoffering->displaytext . ")<br /></option>";
}
echo "</select>";
?>
<br /></div>
</div>
<div id="content">
<div id="col1" style="float:left;width:448px;text-align:right">ISO to build from: </div>
<div id="col2" style="float:left;width:448px;">
<?php
$hash = hash_hmac("sha1", strtolower("listIsos&isofilter=all"), $secretkey.true, TRUE);
$base64encoded = base64_encode($hash);
$signature = "signature=" . urlencode($base64encoded);
$response = "response=json";
$url = "http://FQDN:8096/client/api?command=listIsos&isofilter=all&" . $apikey . $signature . "&" . $response;
$html = file_get_contents($url);
$json = preg_replace('/,\s*([\]}])/m', '$1', utf8_encode($html));
$json = json_decode($json);
echo "<select name=\"isoid\">";
foreach ($json->listisosresponse->iso as $iso) {
echo "<option value=\"" . $iso->id . "\">" . $iso->name . "<br /></option>";
}
echo "</select>";
?>
<br /></div>
</div>
<div id="content">
<div id="col1" style="float:left;width:448px;text-align:right">Disk Offering: </div>
<div id="col2" style="float:left;width:448px;">
<?php
$hash = hash_hmac("sha1", strtolower("listDiskOfferings"), $secretkey.true, TRUE);
$base64encoded = base64_encode($hash);
$signature = "signature=" . urlencode($base64encoded);
$response = "response=json";
$url = "http://FQDN:8096/client/api?command=listDiskOfferings&" . $apikey . $signature . "&" . $response;
$html = file_get_contents($url);
$json = preg_replace('/,\s*([\]}])/m', '$1', utf8_encode($html));
$json = json_decode($json);
echo "<select name=\"diskOfferingId\">";
foreach ($json->listdiskofferingsresponse->diskoffering as $diskoffering) {
echo "<option value=\"" . $diskoffering->id . "\">" . $diskoffering->name . " (" . $diskoffering->displaytext . ")<br /></option>";
}
echo "</select>";
?>
<br /></div>
</div>
<div id="content">
<div id="col1" style="float:left;width:448px;text-align:right">Server Name Prefix: </div>
<div id="col2" style="float:left;width:448px;"><input type="text" name="prefix" placeholder="Example: RACKPOOL"><br /></div>
</div>
<div id="content">
<div id="col1" style="float:left;width:448px;text-align:right">Start Number: </div>
<div id="col2" style="float:left;width:448px;"><input type="text" name="startnum" placeholder="Example: 21"><br /></div>
</div>
<div id="content">
<div id="col1" style="float:left;width:448px;text-align:right">Quantity: </div>
<div id="col2" style="float:left;width:448px;"><input type="text" name="quantity" placeholder="Example: 5"><br /><br /></div>
</div>
<div id="footer" align="center">
<input type="submit" name="submit" value="Build 'em!">
</div>
</div>
</form>
</html> And here is what it looks like:
See? Simple, yet effective! Ping me if you have questions/comments/critiques.
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